package com.sky.aspect;

import com.sky.annotation.AutoFill;
import com.sky.constant.AutoFillConstant;
import com.sky.context.BaseContext;
import com.sky.enumeration.OperationType;
import lombok.extern.slf4j.Slf4j;
import org.aspectj.lang.JoinPoint;
import org.aspectj.lang.annotation.Aspect;
import org.aspectj.lang.annotation.Before;
import org.aspectj.lang.annotation.Pointcut;
import org.aspectj.lang.reflect.MethodSignature;
import org.springframework.stereotype.Component;

import java.lang.reflect.Method;
import java.time.LocalDateTime;

@Aspect
@Component
@Slf4j
public class AutoFillAspect {
    @Pointcut("execution(* com.sky.mapper.*.*(..)) && @annotation(com.sky.annotation.AutoFill)")
    public void  autoFillPointCut(){
    }

    @Before("autoFillPointCut()")
    public void autoFill(JoinPoint joinPoint){
        log.info("自动填充");
        MethodSignature signature=(MethodSignature) joinPoint.getSignature();
        AutoFill autoFill=signature.getMethod().getAnnotation(AutoFill.class);
        OperationType operationType=autoFill.value();
        Object[] args=joinPoint.getArgs();
        if (args==null||args.length==0){
            return;
        }
        else{
            Object arg = args[0];

                try {
                    if (operationType==OperationType.INSERT){
                    Method setCreateTime=arg.getClass().getDeclaredMethod(AutoFillConstant.SET_CREATE_TIME, LocalDateTime.class);
                    Method setCreateUser = arg.getClass().getDeclaredMethod(AutoFillConstant.SET_CREATE_USER, Long.class);
                    Method setUpdateUser = arg.getClass().getDeclaredMethod(AutoFillConstant.SET_UPDATE_USER, Long.class);
                    Method setUpdateTime = arg.getClass().getDeclaredMethod(AutoFillConstant.SET_UPDATE_TIME, LocalDateTime.class);
                    setUpdateUser.invoke(arg,BaseContext.getCurrentId());
                    setUpdateTime.invoke(arg,LocalDateTime.now());
                    setCreateUser.invoke(arg, BaseContext.getCurrentId());
                    setCreateTime.invoke(arg,LocalDateTime.now());
                    }
                    else if (operationType==OperationType.UPDATE){
                        Method setUpdateUser = arg.getClass().getDeclaredMethod(AutoFillConstant.SET_UPDATE_USER, Long.class);
                        Method setUpdateTime = arg.getClass().getDeclaredMethod(AutoFillConstant.SET_UPDATE_TIME, LocalDateTime.class);
                        setUpdateUser.invoke(arg,BaseContext.getCurrentId());
                        setUpdateTime.invoke(arg,LocalDateTime.now());
                    }
                } catch (Exception e) {
                    e.printStackTrace();
                }

        }

    }

}
